Cherries

“Cherries contain anthocyanins, which prevent plaque from building up in the arteries,” says Scritchfield. This allows for optimal blood flow to all organs in your body, and of course leads to a firmer, fuller erection. Bonus: A study in the Journal of the International Society of Sports Nutrition, found that runners who consumed tart cherry juice for a week straight prior to race day experienced a reduction in muscle pain and a boost in recovery. Check out some other benefits of tart cherries, here.